Subject	The nomenclature is confusing and should be changed
Posted by	ZXoltan on May 06, 2024 at 6:38 PM
	This message has been viewed 134 times.
In Reply To	Brake fluid: ok to mix Motul? posted by Mike@ZSpeed on May 06, 2024 at 06:55 AM
Message	DOT 4 and DOT 5.1 are both glycol-based, thus can be mixed. You want to change fluid every couple of years, so should drain out as much of the old fluid as you can, since it gets dirty and absorbs water. But you dont need to worry about interactions. DOT 5 is silicone-based fluid and is not mixable with the others. They should really change the numbering system so it makes more sense.
Follow Ups	Brake fluid: ok to mix Motul? - Mike@ZSpeed 06:55:56 05/06/24 Re: Brake fluid: ok to mix Motul? - zwzweston 10:41:23 05/06/24 Re: Re: Brake fluid: ok to mix Motul? - Mike@ZSpeed 10:49:47 05/06/24 Re: Re: Re: Brake fluid: ok to mix Motul? - zwzweston 12:00:22 05/07/24 The nomenclature is confusing and should be changed - ZXoltan 18:38:36 05/06/24 Since you don't know which fluid you used previously, I... - Mike (NoVA) 08:57:10 05/08/24 That's a nope for me homie. (n/m) - Bernie (NoVA) 23:44:08 05/08/24 Don't recommend 5.1 in the Z32, it reacts with plastics and - Bernie (NoVA) 23:49:51 05/08/24 Interesting. Any idea why? Both 4 & 5.1 are glycol-based. - ZXoltan 11:09:47 05/09/24 Eeww, gross. - Ted (92TT) 12:06:19 05/09/24 Whoah. Was unaware of that one. Good callout. (n/m) - Zeus 18:11:07 05/09/24 Interesting that nasty stuff was showing up outside ABS unit (n/m) - Polishzx 11:26:06 05/10/24 All the seals / orings on the ABS unit weeped. (n/m) - Bernie (NoVA) 19:37:11 05/10/24 Any idea about how long it takes for this to happen? (n/m) - Mike@ZSpeed 20:22:09 05/18/24 Not sure - but I guess less than a year. (n/m) - Bernie (NoVA) 21:25:54 05/19/24 ATE TYP 200 is another great option - Polishzx 11:23:49 05/10/24 Good stuff! Running that in my dd (Audi) & brakes are great - ZXoltan 16:06:35 05/10/24 I do that too. Still have 3 cans of blue. Why was it banned? (n/m) - Ted (92TT) 18:24:11 05/10/24 The dye was not DOT approved. (n/m) - Bernie (NoVA) 19:35:44 05/10/24
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